(ISO 5889 International Standard INTERNATIONAL ORGANIZATION FOR STANDARDIZATIONOMEKAYHAPOAHAA OPrAHW3AUMA HO CTAHAAPTW3ALIMMOORGANISATION INTERNATIONALE DE NORMALISATION Manganese ores and concentrates - Determination of aluminium, copper, lead and zinc contents --- Flame atomic absorption spectrometric method Minerais et concentres de manganese -- Dosage de I'aluminium, du cuivre, du plomb et du zinc --- Methode par spectrometrie d'absorption atomique dans la flamme First edition - 1983-09-15 UDC 553.32 : 543.422 : 669.3/.5 : 669.71 Ref. No. 1SO 5889-1983 (E) Descriptors : manganese ores, chemical analysis, determination of content, aluminium, copper, lead, zinc, atomic absorption method. Price based on 4 pages Not for Resale Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of devetoping International Standards is carried out through ISO technical committees. Every member body interested in a subject for which a technical committee has been authorized has the and non-governmental, in liaison with isO, also take part in the work. Draft International Standards adopted by the technical committees are circulated to the member bodies for approval before their acceptance as International Standards by the ISO Council. International Standard ISO 5889 was developed by Technical Committee iSO/TC 65, Manganese and chromium ores, and was circulated to the member bodies in May 1982. It has been approved by the member bodies of the following countries : Australia India South Africa, Rep. of Austria Italy Thailand China ueder United Kingdom Czechoslovakia Mexico USSR Egypt, Arab Rep. of Poland Germany, F.R. Romania technical grounds : France International Organization for Standardization, 1983 Printed in Switzerland d without license from IHS Not for Resale ISO 5889-1983 (E) INTERNATIONAL STANDARD Manganese ores and concentrates -- Determination of aluminium, copper, lead and zinc contents -- Flame atomic absorption spectrometric method Scope and field of application lead and zinc and dinitrogen oxide/acetylene burner for aluminium. This International Standard specifies a flame atomic absorption spectrometric method for the determination of the aluminium, Comparison of absorbance values obtained with those ob- copper, lead and zinc contents of manganese ores and concen- tained from the calibration solutions. trates. Reagents The method is applicable to a concentration range of 4 0,1 to 4,0 % (m/m) of aluminium; 4.1 Fusion mixture : 3 parts of potassium carbonate and 1 part of boric acid. 0,005 to 1,0 % (m/m) of copper; Nitric acid, @ 1,40 g/ml. 4.2 0,005 to 1,0 % (m/m) of lead; 0,005 to 0,25 % (m/ m) of zinc. 4.3 Sulfuric acid, g 1,84 g/ml. This International Standard should be read in conjunction with 4.4 Hydrochloric acid, g 1,19 g/ml. ISO 4297. 4.5 Hydrofluoric acid, 40 % (m/m), g 1,14 g/ml. 2 References 4.6 Hydrochloric acid, diluted 1 + 1. IS0 4296/1, Manganese ores -- Sampling - Part 1 : Incre- 4.7 Hydrochloric acid, diluted 1 + 50. ment sampling. 1) Iso 4296/2, Manganese ores - Sampling -- Part 2 : Prepara- 4.8 Aluminium, standard solution corresponding to 1 g of tion of samples. 1) Al per litre. iso 4297, Manganese ores and concentrates --- Methods of Dissolve 0,500 0 g of high purity aluminium (purity 99,99 %) by chemical analysis - General instructions. adding 25 ml of the hydrochloric acid (4.4) while heating. When dissolved, allow the solution to cool, transfer it to a 500 ml one-mark volumetric flask, dilute with water to the mark 3 Principle and mix. 1 ml of this standard solution contains 1 mg of Al. Decomposition of a test portion by treatment with hydrochloric and nitric acids. 4.9 Lead, standard solution corresponding to 1 g of Pb Filtration of any insoluble residue after evaporation, the filtrate per litre. being reserved as the main.solution. Ignition of the filter con- taining the residue. Treatment with hydrofluori